In the original game, the Adder has an HP value of 10-52, with an average of 31. In 2002 remake, the Adder has an HP value of between 100 and 520, in comparison to Chris' and Jill's 1400 and 960, respectively. The Adders are first encountered in the courtyard in the original Resident Evil. As the player makes their way to the waterfall, they fall from the trees and attempt to poison them. Should the player be poisoned, there is a Blue Herb pot just down the elevator.